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CQL for OLAP issue with Syclla as backed both Local and Yarn Mode
12 messages
Hi All, I am unable to run any analytics (OLAP) on JanusGraph with Syclla as backend. I tried both in Local and Yarn mode on AWS EMR cluster In Yarn mode, it Throws an exception 10:07:58 ERROR org.apa
Hi All, I am unable to run any analytics (OLAP) on JanusGraph with Syclla as backend. I tried both in Local and Yarn mode on AWS EMR cluster In Yarn mode, it Throws an exception 10:07:58 ERROR org.apa
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By
rakesh...@...
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Java usage of V() in updates on inmemory graph
3 messages
Hello, Can someone kindly explain why the below example works without the red .V()? If that is included, the call to next() returns a NoSuchElementException. static void example() throws Exception { J
Hello, Can someone kindly explain why the below example works without the red .V()? If that is included, the call to next() returns a NoSuchElementException. static void example() throws Exception { J
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bremc...@...
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REGEX match in JanusGraph
Hi, I have a requirement where I need to do a REGEX match of a vertex property. My query looks like following: fciGraph.V().has('nodeLabel','pattern').has('context','aml').has('queryNameCheck',textCon
Hi, I have a requirement where I need to do a REGEX match of a vertex property. My query looks like following: fciGraph.V().has('nodeLabel','pattern').has('context','aml').has('queryNameCheck',textCon
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By
sarthak...@...
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List properties in JG not behaving as in Tinkergraph?
4 messages
Hi, I accidentally posted this question in the Janusgraph developer group. Now that I noticed this I'm reposting it here, as I think it fits better in here. I'm currently learning gremlin/JG and was p
Hi, I accidentally posted this question in the Janusgraph developer group. Now that I noticed this I'm reposting it here, as I think it fits better in here. I'm currently learning gremlin/JG and was p
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By
thomas.d...@...
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Problem with index (doesn't return result)
Hi everyone, I work on an web application for my company, which use these tools: -Gremlin -JanusGraph -Scylladb I have a composite index: EntityActivatedReachable Type: Composite Unique: True composed
Hi everyone, I work on an web application for my company, which use these tools: -Gremlin -JanusGraph -Scylladb I have a composite index: EntityActivatedReachable Type: Composite Unique: True composed
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By
alex....@...
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dynamic graph traversal from python
How to access dynamically created graph from gremlin python without specifying it in groovy script which runs when gremlin server starts. Thanks, RLA.
How to access dynamically created graph from gremlin python without specifying it in groovy script which runs when gremlin server starts. Thanks, RLA.
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Real Life Adventure
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unable to add edge gremlinpython janusgraph
9 messages
i am trying to add edge b/w vertices.not received any error when it executes.but edge is not added to graph. followed below steps v1=g.V().has('id',1).next() v2=g.V().has('id',13).next() g.V(v1).addE(
i am trying to add edge b/w vertices.not received any error when it executes.but edge is not added to graph. followed below steps v1=g.V().has('id',1).next() v2=g.V().has('id',13).next() g.V(v1).addE(
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By
Real Life Adventure
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VIDEO: A Graph is a Graph is a Graph: Josh Shinavier on Graph Data Modeling and Category Theory
Graph Pals, Thanks for your patience, and sorry it took so long. I've just published Josh Shinavier's talk on Graph Data Modeling and Category Theory A Graph is a Graph is a Graph https://www.youtube.
Graph Pals, Thanks for your patience, and sorry it took so long. I've just published Josh Shinavier's talk on Graph Data Modeling and Category Theory A Graph is a Graph is a Graph https://www.youtube.
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By
Lynn Bender
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GraphTraversal.path().toList() method couldn't return all matched paths at first time
2 messages
hello, gremlin java client couldn't return matched paths confused me for a long time,everything is all right when search condition is simple. sample code below logs the matched path size which value i
hello, gremlin java client couldn't return matched paths confused me for a long time,everything is all right when search condition is simple. sample code below logs the matched path size which value i
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By
samma...@...
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Should we use global traversal source in gremlin script directly?
Hi, Is it recommended to use global traversal source to span traversal in gremlin script directly? Or should we create a new transactional source for each gremlin script submission? If there is any er
Hi, Is it recommended to use global traversal source to span traversal in gremlin script directly? Or should we create a new transactional source for each gremlin script submission? If there is any er
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By
Amiya
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jython-gremlin traversal error
5 messages
received below error while accessing traversal api from jython-gremlin graph = TinkerFactory.createModern() g = graph.traversal() ERROR: g = graph.traversal() at org.apache.tinkerpop.gremlin.process.t
received below error while accessing traversal api from jython-gremlin graph = TinkerFactory.createModern() g = graph.traversal() ERROR: g = graph.traversal() at org.apache.tinkerpop.gremlin.process.t
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By
Real Life Adventure
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Import file to Janusgraph throws [ Property value [[255]] is of type class java.util.ArrayList is not supported ] error
Trying to export and import using below two scripts. Export works fine(with no issues). Export script: ============ GraphSONMapper m = graph.io(IoCore.graphson()).mapper().embedTypes(false).create();
Trying to export and import using below two scripts. Export works fine(with no issues). Export script: ============ GraphSONMapper m = graph.io(IoCore.graphson()).mapper().embedTypes(false).create();
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By
Tejasri pavuluri
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GC overhead limit exceeded while removing Index using mapreduce
Hi, I'm getting the below error while removing a graph index using mapreduce. 2020-05-17 13:29:12,729 INFO [main-SendThread(edcdeployment008.informatica.com:2181)] org.apache.zookeeper.ClientCnxn: Soc
Hi, I'm getting the below error while removing a graph index using mapreduce. 2020-05-17 13:29:12,729 INFO [main-SendThread(edcdeployment008.informatica.com:2181)] org.apache.zookeeper.ClientCnxn: Soc
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By
Shiva Krishnan
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data schema in janusgraph using python
2 messages
what is the best way to create data schema in janusgraph using python?
what is the best way to create data schema in janusgraph using python?
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By
Real Life Adventure
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JanusGraph as Primary Database/Source of Truth
7 messages
Hi. We are a charging station company based out of India. We are in the process of building an IoT platform to manage the charging stations. We are planning to use JanusGraph (Cassandra + ES Index Sto
Hi. We are a charging station company based out of India. We are in the process of building an IoT platform to manage the charging stations. We are planning to use JanusGraph (Cassandra + ES Index Sto
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By
Raghavendar T S
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Janusgraph cache behavior
Hi, Does the data get into database level cache(global cache) only when the transaction is committed ? Also how does the jansugraph cache get evicted, follows LIFO or evacuate non frequent elements ?
Hi, Does the data get into database level cache(global cache) only when the transaction is committed ? Also how does the jansugraph cache get evicted, follows LIFO or evacuate non frequent elements ?
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By
"Suriya.Rajasekar"
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JanusGraph Memory Utilization
4 messages
I am running JanusGraph/Cassandra/ElasticSearch and notice rising memory utilization for JanusGraph (+3GB in 24 hours). This memory rise is consitent between my two setups: Each component is within th
I am running JanusGraph/Cassandra/ElasticSearch and notice rising memory utilization for JanusGraph (+3GB in 24 hours). This memory rise is consitent between my two setups: Each component is within th
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By
seanjo...@...
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What are the advantages of using CreateThreadedTx in Multithreading if we can explicitly share the transaction object?
4 messages
Hi, If we can share the transaction object among multiple threads such that they work concurrently in the same transaction and are able to see each other's operation. Then what are the advantages of u
Hi, If we can share the transaction object among multiple threads such that they work concurrently in the same transaction and are able to see each other's operation. Then what are the advantages of u
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By
"Suriya.Rajasekar"
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Janusgraph remote connection
2 messages
Hello all i would like some help since i cannot find something online. I want to connect remotely to a Gremlin server and take a JanusGraph Instance. i was testing with this and I could get back a Jan
Hello all i would like some help since i cannot find something online. I want to connect remotely to a Gremlin server and take a JanusGraph Instance. i was testing with this and I could get back a Jan
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By
dimi...@...
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Improve performance on Properties Step
2 messages
Hello, I am trying to optimize a simple recommendation query, and am somewhat stuck. *Our Setup* - Janusgraph 0.5.1 - Storage Backend: Scylla DB 3.2.4 *The Graph* Our Graph contains millions of vertic
Hello, I am trying to optimize a simple recommendation query, and am somewhat stuck. *Our Setup* - Janusgraph 0.5.1 - Storage Backend: Scylla DB 3.2.4 *The Graph* Our Graph contains millions of vertic
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By
Claire
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